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Fix PowerShell Slow Performance After Update - Fix High CPU Usage by MsMpEng.exe (Windows Defender)-Step-by-Step Firefox Profile Refresh for Crashes

Updated 2026-06-14 11:15:42cloud-software
Fix PowerShell Slow Performance After Update - Fix High CPU Usage by MsMpEng.exe (Windows Defender)-Step-by-Step Firefox Profile Refresh for Crashes
Prepare
Execute
Validate
Document

Operational follow-up

  • Record the exact option, command, or setting that changed the result.
  • Keep a rollback note if the workflow affects shared files or team settings.

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